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All Forums >> TEAM RCU >> TEAM RCU - Chip Hyde! >> Venus II
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Venus II - 8/25/2006 3:12:49 AM   
codfish


 

Posts: 88
Joined: 3/13/2006
From: sellersville, PA, USA
Status: offline 		Chip,

I enjoy reading your forum and would like your advice.

I am thinking of getting a start in precision flying and would like to start with the Great Planes Venus II (120 size). I am not thinking of competing just yet but just want a precision plane to learn and enjoy. I have had good luck with Great Planes products and the Venus II is marketed as a precision craft. The manual impressed me with its attention to details and modern layout. In the G# simulator it flies like a dream. All the user reviews had nothing but good to say about quality etc, however there are not many of them yet (this is a new plane).

My questions are:

1) Do you have an opinion of the Venus II?

2) For precision flying is there an advantage of 2 stroke or 4 stroke engines (which is better?) and how serious of a decision is this? I realize the 4 stokes have more low end torque, and the 2 stokes have more high end power. I had originally considered using a Saito 125. Although the specs call for 60 - 90 2 stroke, I am planning on using the new OS 120 AX engine (2 stroke). I had so much luck with the OS .46AX I just wanted to try the 120 AX, and it fits into the same space as a .90.

3) (Digital servos) I am planning to use high quality precision digital servos (Hitec HS-6965) all the way around except for throttle. Do you find a good digital servo makes a difference over an analog servo? In picking a servo, I selected one that had more than enough torque, but also had very high speed (.10 sec / 60 degrees), and reasonable weight. Do you consider high speed to be an important factor for precision airplane? (I know for helis it is)

Thank - you!
Gary Galambos

       Post #: 1

RE: Venus II - 8/31/2006 5:45:36 AM   
dingo9882


 

Posts: 141
Joined: 4/1/2005
From: Sandy Hook, CT, USA
Status: offline 		I am just finishing up the Venus II. My main problem is the nose weight. I put the 1.20 AX in it just like you thought you where going to do. But, I need approximitly 7.1 ounces of weight in the tail to help balance it. Now for pattern this is just not good. I am having a very experianced builder and pattern flyer help me with this plane and we are still trying to figure out what to do to minimize the exta weight. At all costs minimize the weight. The saito's are very light, but for reliability reasons you need an engine that you can depend on to start up in three minutes and stay on for around 5 minutes of flying and good pull in the air. Try mounting the servos in the tail as well to help minimize the weight. We even tried to mount the tank in the center but the configuration for the radio compartment was in the way. Otherwise this plane is built very, very, good. Good luck with your pick, and me anal about the weight. Make sure you check up on all the specs.

_____________________________

"This is a model airplane...But like Burger King, FLY IT YOUR WAY!"

(in reply to codfish)
       Post #: 2

RE: Venus II - 8/31/2006 1:14:42 PM   
codfish


 

Posts: 88
Joined: 3/13/2006
From: sellersville, PA, USA
Status: offline 		Dingo,

Did you mount the 2 elevator and 1 rudder servo in the back? I am planning to do that. each servo weighs 1.8 oz making a total of 5.4 oz. If you did that and still have nose weight problems, then i will be in trouble with my planned configuration. As far as Saito engines go , yes they are much lighter. The 125 is 5 OZ lighter than the 120 AX, and 8 oz lighter than OS 120 surpass. I have been using one for a little while now in another plane (Saito 100) and i also have several OS max engines. I find both Saito and OS's to be equally reliable so far. My Saito starts on the first try every time. To keep it running in the air i just need to make sure it is not running too lean and it keeps running.

I think the Saito 125 might help solve your balance issue. Don't discount it's power. It has a little more than the OS 120 surpass that the original was flown on. In the G3 flight simulator the 120 suppass gives plenty power. So why did i decide on the 120 AX? well i just enjoyed my 46 AX so much i just wanted to check out the 120 AX. If i run into nose weight issues i will not hesitate at all to switch to Saito 125. The Saito 125 gets excellent reviews.

anyway let me know where you mounted your servos.

thanks
gary

(in reply to dingo9882)
       Post #: 3

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